Trait Needle 

pub trait Needle {
    const SIZE: Option<usize>;

    // Required method
    fn as_bytes(&self) -> &[u8] ;
}

Needle that can be searched for within a haystack. It allows specialized searcher implementations for needle sizes known at compile time.

Required Associated Constants

const SIZE: Option<usize>

Set to Some(<usize>) if and only if the needle’s length is known at compile time.

Required Methods

fn as_bytes(&self) -> &[u8]

Return the slice corresponding to the needle.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Needle for Vec<u8>

const SIZE: Option<usize> = None

fn as_bytes(&self) -> &[u8]

impl Needle for [u8]

const SIZE: Option<usize> = None

fn as_bytes(&self) -> &[u8]

impl<N: Needle + ?Sized> Needle for &N

const SIZE: Option<usize> = N::SIZE

fn as_bytes(&self) -> &[u8]

impl<N: Needle + ?Sized> Needle for Box<N>

const SIZE: Option<usize> = N::SIZE

fn as_bytes(&self) -> &[u8]

impl<N: Needle + ?Sized> Needle for Rc<N>

const SIZE: Option<usize> = N::SIZE

fn as_bytes(&self) -> &[u8]

impl<N: Needle + ?Sized> Needle for Arc<N>

const SIZE: Option<usize> = N::SIZE

fn as_bytes(&self) -> &[u8]

impl<const N: usize> Needle for [u8; N]

const SIZE: Option<usize>

fn as_bytes(&self) -> &[u8]

Implementors